After joining and then leaving the Disney Movie Club, I wound up with a bunch of Blu-ray disks. Many of them included a DVD disk as well so that you could share with friends who don’t have Blu-ray or to convince you to buy the Blu-ray disk even though you don’t have a player yet. Blu-ray does not seem to have caught on as well as DVD’s originally did, maybe because people don’t feel like buying disks and players anymore when they can stream over Netflix, Roku, Chromecast, or whatever to their TV, computer, phone, or tablet. Good technology, bad timing. And Blu-ray has branched off so that now there are 3D Blu-ray disk which should play in a conventional Blu-ray player (though not in 3D) and Ultra HD 4K which is not backwards compatible. Even though most of the highest grossing movies are filmed in 3D, Neither of these seems all that popular. People maybe don’t want to wear the glasses at home or something and maybe there aren’t enough UHD TV’s and UHD disk players out there yet.

Anyway, in addition to the DVD disk, many of the Blu-rays include a digital copy or “Digital HD” as stated on the cover. Sometimes there isn’t a digital HD copy and sometimes not a DVD and sometimes neither. But lately, it seems the digital copy is being included more and more often (and the DVD less and less: Pixar is re-releasing movies on Blu-ray that used to include Blu-ray and DVD disks and now including the Blu-ray and Digital HD only, which saves them the cost of including an extra disk).